Edgar Filing: EATON VANCE SENIOR INCOME TRUST

Eaton Vance Senior Income Trust

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-09013

Eaton Vance Senior Income Trust

(Exact Name of Registrant as Specified in Charter)

Two International Place, Boston, Massachusetts 02110

(Address of Principal Executive Offices)

Maureen A. Gemma

Two International Place, Boston, Massachusetts 02110

(Name and Address of Agent for Services)

(617) 482-8260

(Registrant’s Telephone Number)

June 30

Date of Fiscal Year End

June 30, 2018

Date of Reporting Period

Item 1. Reports to Stockholders

LOGO

Eaton Vance

Senior Income Trust (EVF)

Annual Report

June 30, 2018

LOGO

Commodity Futures Trading Commission Registration. Effective December 31, 2012, the Commodity Futures Trading Commission (“CFTC”) adopted certain regulatory changes that subject registered investment companies and advisers to regulation by the CFTC if a fund invests more than a prescribed level of its assets in certain CFTC-regulated instruments (including futures, certain options and swap agreements) or markets itself as providing investment exposure to such instruments. The Fund has claimed an exclusion from the definition of the term “commodity pool operator” under the Commodity Exchange Act. Accordingly, neither the Fund nor the adviser with respect to the operation of the Fund is subject to CFTC regulation. Because of its management of other strategies, the Fund’s adviser is registered with the CFTC as a commodity pool operator and a commodity trading advisor.

Fund shares are not insured by the FDIC and are not deposits or other obligations of, or guaranteed by, any depository institution. Shares are subject to investment risks, including possible loss of principal invested.

Annual Report June 30, 2018

Eaton Vance

Senior Income Trust

Table of Contents


Management’s Discussion of Fund Performance			2

Performance			3

Fund Profile			4

Endnotes and Additional Disclosures			5

Financial Statements			6

Report of Independent Registered Public Accounting Firm			47

Federal Tax Information			48

Dividend Reinvestment Plan			49

Board of Trustees’ Contract Approval			51

Management and Organization			54

Important Notices			57

Eaton Vance

Senior Income Trust

June 30, 2018

Management’s Discussion of Fund Performance¹

Economic and Market Conditions

The U.S. floating-rate loan market experienced a positive return and limited price volatility for the 12-month period ended June 30, 2018, with the S&P/LSTA Leveraged Loan Index (the Index),² a broad barometer of the U.S. loan market, returning 4.37%. For the period as a whole, performance was composed almost entirely of coupon generation, with loan prices mostly moving sideways.

The U.S. Federal Reserve Board increased interest rates three times during the period — in December 2017 and in March and June 2018. Unlike fixed-income securities, the impact of interest rate changes on the value of floating-rate loans is typically reduced by periodic interest rate resets. As a result, the loan market was helped by increasing investor demand for floating-rate loans during this rising interest rate environment.

Technical conditions were positive for most of the period, with demand generally outpacing supply. The collateralized loan obligation market was a consistently strong driver of demand, and retail mutual funds saw positive inflows for eight of the period’s 12 months. For the period as a whole, loan prices were relatively stable, beginning the period at an average price of $98.02 and ending it at an average price of $98.05. Approximately 87% of performing loans ended the period bid at 98% of their par value or higher.

With the U.S. economy’s recovery accelerating modestly during the period, health in corporate fundamentals continued to reflect relatively benign conditions. While the high-profile default of iHeart Media, an Index component, pushed up the default rate to 2.12% on a last-twelve-month basis in June 2018, the default rate settled down to close the period at 1.99%, well below its long-term average.

Fund Performance

For the 12-month period ended June 30, 2018, Eaton Vance Senior Income Trust (the Fund) shares at net asset value (NAV) had a total return of 6.12%, outperforming the 4.37% return of the Index.

Under normal market conditions, the Fund invests at least 80% of its total assets in senior loans of domestic and foreign borrowers that are denominated in U.S. dollars, euros, British pounds, Swiss francs, Canadian dollars and Australian dollars. In keeping with its objective to provide a high level of current income, consistent with the preservation of capital,

the Fund has historically tended to overweight higher-rated loans relative to the Index. This strategy may help the Fund experience limited credit losses over time, but may detract from relative results versus the Index in times when lower-rated loans perform well.

For the 12-month period, BBB-rated⁸ loans in the Index returned 3.06%, BB-rated loans in the Index returned 3.75%, B-rated loans in the Index returned 4.48%, CCC-rated loans in the Index returned 9.62%, and D-rated (defaulted) loans in the Index returned –4.19%. Given this performance mix, the Fund’s positioning and resulting underweight, relative to the Index, to defaulted loans helped Fund performance versus the Index. However, the Fund’s underweight to rallying CCC-rated loans detracted from results versus the Index.

Loan selection across the Fund’s portfolio aided performance versus the Index, as loans held by the Fund collectively outperformed those in the Index. Loan selection was particularly evident within the financials and energy sectors, as these represented the main contributors to relative Fund performance versus the Index during the period. At the same time, loan selection within the technology and health care sectors detracted from results relative to the Index.

Additionally, the Fund’s holdings in high-yield bonds detracted from performance versus the Index, as high-yield bonds underperformed the loan market during the period — and high-yield bonds are not included in the Index. However, the Fund’s employment of investment leverage⁶ contributed to performance versus the Index (which does not employ leverage). The use of leverage has the effect of achieving additional exposure to the loan market, and thus magnifying exposure to the Fund’s underlying investments in both up and down market environments. The use of leverage amplified the positive total return of the Fund’s underlying portfolio during the period.

See Endnotes and Additional Disclosures in this report.

Past performance is no guarantee of future results. Returns are historical and are calculated by determining the percentage change in net asset value (NAV) or market price (as applicable) with all distributions reinvested and include management fees and other expenses. Fund performance at market price will differ from its results at NAV due to factors such as changing perceptions about the Fund, market conditions, fluctuations in supply and demand for Fund shares, or changes in Fund distributions. Investment return and principal value will fluctuate so that shares, when sold, may be worth more or less than their original cost. Performance less than or equal to one year is cumulative. Performance is for the stated time period only; due to market volatility, current Fund performance may be lower or higher than the quoted return. For performance as of the most recent month-end, please refer to eatonvance.com.


		2

Eaton Vance

Senior Income Trust

June 30, 2018

Performance^2,3

Portfolio Managers Scott H. Page, CFA and John Redding


% Average Annual Total Returns	Inception Date		One Year			Five Years			Ten Years
Fund at NAV		10/30/1998		6.12	%		5.85	%		6.37	%
Fund at Market Price		—		1.39			2.91			6.41
S&P/LSTA Leveraged Loan Index		—		4.37	%		4.00	%		5.19	%


% Premium/Discount to NAV⁴
										–11.14	%


Distributions⁵
Total Distributions per share for the period									$	0.365
Distribution Rate at NAV										5.18	%
Distribution Rate at Market Price										5.83	%


% Total Leverage⁶
Auction Preferred Shares (APS)										14.44	%
Borrowings										21.80

See Endnotes and Additional Disclosures in this report.


		3

Eaton Vance

Senior Income Trust

June 30, 2018

Fund Profile

Top 10 Issuers (% of total investments)⁷


Reynolds Group Holdings, Inc.	1.2	%

Valeant Pharmaceuticals International, Inc.	1.1

TransDigm, Inc.	1.0

Asurion, LLC	1.0

Univision Communications, Inc.	1.0

Albertsons, LLC	0.9

Aretec Group, Inc.	0.9

Virgin Media Investment Holdings Limited	0.8

Infor (US), Inc.	0.8

TDC A/S	0.8

Total	9.5	%

Top 10 Sectors (% of total investments)⁷


Electronics/Electrical	10.8	%

Health Care	10.0

Business Equipment and Services	9.2

Chemicals and Plastics	4.3

Telecommunications	4.3

Drugs	4.1

Cable and Satellite Television	3.9

Lodging and Casinos	3.8

Industrial Equipment	3.7

Financial Intermediaries	3.6

Total	57.7	%

Credit Quality (% of bonds, loans and asset-backed securities)⁸

LOGO

See Endnotes and Additional Disclosures in this report.


		4

Eaton Vance

Senior Income Trust

June 30, 2018

Endnotes and Additional Disclosures

The views expressed in this report are those of the portfolio manager(s) and are current only through the date stated at the top of this page. These views are subject to change at any time based upon market or other conditions, and Eaton Vance and the Fund(s) disclaim any responsibility to update such views. These views may not be relied upon as investment advice and, because investment decisions are based on many factors, may not be relied upon as an indication of trading intent on behalf of any Eaton Vance fund. This commentary may contain statements that are not historical facts, referred to as “forward looking statements”. The Fund’s actual future results may differ significantly from those stated in any forward looking statement, depending on factors such as changes in securities or financial markets or general economic conditions, the volume of sales and purchases of Fund shares, the continuation of investment advisory, administrative and service contracts, and other risks discussed from time to time in the Fund’s filings with the Securities and Exchange Commission.

S&P/LSTA Leveraged Loan Index is an unmanaged index of the institutional leveraged loan market. Unless otherwise stated, index returns do not reflect the effect of any applicable sales charges, commissions, expenses, taxes or leverage, as applicable. It is not possible to invest directly in an index.

Performance results reflect the effects of leverage. Performance since inception for an index, if presented, is the performance since the Fund’s or oldest share class’ inception, as applicable. Included in the average annual total return at NAV for the five and ten year periods is the impact of the tender and repurchase of a portion of the Fund’s APS at 95% of the Fund’s APS per share liquidation preference. Had this transaction not occurred, the total return at NAV for the five and ten years would be lower for the Fund.

⁴	The shares of the Fund often trade at a discount or premium from their net asset value. The discount or premium of the Fund may vary over time and may be higher or lower than what is quoted in this report. For up-to-date premium/discount information, please refer to http://eatonvance.com/closedend.

⁵

The Distribution Rate is based on the Fund’s last regular distribution per share in the period (annualized) divided by the Fund’s NAV or market price at the end of the period. The Fund’s distributions may be comprised of amounts characterized for federal income tax purposes as qualified and non-qualified ordinary dividends, capital gains and nondividend distributions, also known as return of capital. For additional information about nondividend distributions, please refer to Eaton Vance Closed-End Fund Distribution Notices (19a) posted on our website, eatonvance.com. The Fund will determine the federal income tax character of distributions paid to a shareholder after the end of the calendar year. This is reported on the IRS form 1099-DIV and provided to the shareholder shortly after each year-end. For information about the tax character of distributions made in prior calendar years, please refer to Performance-Tax Character of Distributions on the Fund’s webpage available at eatonvance.com. The Fund’s distributions are determined by the investment adviser based on its current assessment of the Fund’s long-term return potential. Fund distributions may be affected by numerous factors including changes in Fund performance, the cost of financing for leverage, portfolio holdings, realized and projected returns, and other factors. As portfolio and market conditions change, the rate of distributions paid by the Fund could change.

⁶

Leverage represents the liquidation value of the Fund’s APS and borrowings outstanding as a percentage of Fund net assets applicable to common shares plus APS and borrowings outstanding. Use of leverage creates an opportunity for income, but creates risks including greater price volatility. The cost of leverage rises and falls with changes in short-term interest rates. The Fund may be required to maintain prescribed asset coverage for its leverage and may be required to reduce its leverage at an inopportune time.

⁷	Excludes cash and cash equivalents.

⁸

Credit ratings are categorized using S&P Global Ratings (“S&P”). Ratings, which are subject to change, apply to the creditworthiness of the issuers of the underlying securities and not to the Fund or its shares. Credit ratings measure the quality of a bond based on the issuer’s creditworthiness, with ratings ranging from AAA, being the highest, to D, being the lowest based on S&P’s measures. Ratings of BBB or higher by S&P are considered to be investment-grade quality. Credit ratings are based largely on the ratings agency’s analysis at the time of rating. The rating assigned to any particular security is not necessarily a reflection of the issuer’s current financial condition and does not necessarily reflect its assessment of the volatility of a security’s market value or of the liquidity of an investment in the security. Holdings designated as “Not Rated” (if any) are not rated by S&P.

Fund profile subject to change due to active management.


		5

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments


Senior Floating-Rate Loans — 145.1%⁽¹⁾
Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Aerospace and Defense — 2.0%
Accudyne Industries, LLC
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing August 18, 2024		333	$	333,367
IAP Worldwide Services, Inc.
Revolving Loan, 1.46%, (3 mo. USD LIBOR + 5.50%), Maturing July 18, 2018⁽²⁾		161		160,903
Term Loan - Second Lien, 8.83%, (3 mo. USD LIBOR + 6.50%), Maturing July 18, 2019⁽³⁾		214		173,454
TransDigm, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing June 9, 2023		2,933		2,924,819
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing August 22, 2024		1,222		1,216,864
Wesco Aircraft Hardware Corp.
Term Loan, 5.10%, (1 mo. USD LIBOR + 3.00%), Maturing October 4, 2021		433		428,019
WP CPP Holdings, LLC
Term Loan, 6.28%, (6 mo. USD LIBOR + 3.75%), Maturing April 30, 2025		175		175,897
			$	5,413,323

Automotive — 3.4%
American Axle and Manufacturing, Inc.
Term Loan, 4.35%, (1 mo. USD LIBOR + 2.25%), Maturing April 6, 2024		1,453	$	1,449,606
Apro, LLC
Term Loan, 6.14%, (2 mo. USD LIBOR + 4.00%), Maturing August 8, 2024		122		122,608
Belron Finance US, LLC
Term Loan, 4.86%, (3 mo. USD LIBOR + 2.50%), Maturing November 7, 2024		249		249,760
Chassix, Inc.
Term Loan, 7.94%, (USD LIBOR + 5.50%), Maturing November 15, 2023⁽⁴⁾		647		649,984
CS Intermediate Holdco 2, LLC
Term Loan, 4.33%, (3 mo. USD LIBOR + 2.00%), Maturing November 2, 2023		330		330,924
Dayco Products, LLC
Term Loan, 6.56%, (3 mo. USD LIBOR + 4.25%), Maturing May 19, 2023		495		496,856
FCA US, LLC
Term Loan, 4.10%, (1 mo. USD LIBOR + 2.00%), Maturing December 31, 2018		604		605,936


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Automotive (continued)
Federal-Mogul Holdings Corporation
Term Loan, 5.82%, (1 mo. USD LIBOR + 3.75%), Maturing April 15, 2021			1,493	$	1,498,009
Horizon Global Corporation
Term Loan, 6.59%, (1 mo. USD LIBOR + 4.50%), Maturing June 30, 2021			176		163,424
L&W, Inc.
Term Loan, 6.08%, (1 mo. USD LIBOR + 4.00%), Maturing May 22, 2025			375		376,875
Sage Automotive Interiors, Inc.
Term Loan, 7.09%, (1 mo. USD LIBOR + 5.00%), Maturing October 27, 2022			345		347,336
Tenneco, Inc.
Term Loan, Maturing June 14, 2025⁽⁵⁾			1,700		1,687,463
TI Group Automotive Systems, LLC
Term Loan, 3.50%, (3 mo. EURIBOR + 2.75%, Floor 0.75%), Maturing June 30, 2022	EUR		365		426,060
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing June 30, 2022			459		459,618
Tower Automotive Holdings USA, LLC
Term Loan, 4.81%, (1 mo. USD LIBOR + 2.75%), Maturing March 7, 2024			315		314,153
				$	9,178,612

Beverage and Tobacco — 0.7%
Arterra Wines Canada, Inc.
Term Loan, 5.07%, (3 mo. USD LIBOR + 2.75%), Maturing December 15, 2023			1,209	$	1,204,274
Flavors Holdings, Inc.
Term Loan, 8.08%, (3 mo. USD LIBOR + 5.75%), Maturing April 3, 2020			297		275,762
Term Loan - Second Lien, 12.33%, (3 mo. USD LIBOR + 10.00%), Maturing October 3, 2021			500		387,500
				$	1,867,536

Brokerage / Securities Dealers / Investment Houses — 0.9%
Aretec Group, Inc.
Term Loan, 6.34%, (1 mo. USD LIBOR + 4.25%), Maturing November 23, 2020			640	$	643,670
Term Loan - Second Lien, 9.59%, (1 mo. USD LIBOR + 7.50% (2.00% Cash, 7.59% PIK)), Maturing May 23, 2021			898		900,472
OZ Management L.P.
Term Loan, 7.13%, (3 mo. USD LIBOR + 4.75%), Maturing April 11, 2023			260		261,300


		6		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Brokerage / Securities Dealers / Investment Houses (continued)
Resolute Investment Managers, Inc.
Term Loan - Second Lien, 9.86%, (3 mo. USD LIBOR + 7.50%), Maturing April 30, 2023		250	$	254,375
Salient Partners L.P.
Term Loan, 10.59%, (1 mo. USD LIBOR + 8.50%), Maturing May 19, 2021		335		329,483
			$	2,389,300

Building and Development — 3.5%
American Builders & Contractors Supply Co., Inc.
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing October 31, 2023		1,383	$	1,373,702
Beacon Roofing Supply, Inc.
Term Loan, 4.28%, (1 mo. USD LIBOR + 2.25%), Maturing January 2, 2025		274		273,327
Core & Main L.P.
Term Loan, 5.25%, (USD LIBOR + 3.00%), Maturing August 1, 2024⁽⁴⁾		373		374,680
CPG International, Inc.
Term Loan, 6.25%, (6 mo. USD LIBOR + 3.75%), Maturing May 3, 2024		925		926,279
DTZ U.S. Borrower, LLC
Term Loan, 5.57%, (3 mo. USD LIBOR + 3.25%), Maturing November 4, 2021		2,072		2,071,731
GGP, Inc.
Term Loan, Maturing May 4, 2025⁽⁵⁾		450		443,419
Henry Company, LLC
Term Loan, 6.09%, (1 mo. USD LIBOR + 4.00%), Maturing October 5, 2023		197		198,238
Quikrete Holdings, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing November 15, 2023		1,202		1,198,584
RE/MAX International, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing December 15, 2023		905		909,153
Summit Materials Companies I, LLC
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing November 21, 2024		299		298,276
Werner FinCo L.P.
Term Loan, 5.98%, (1 mo. USD LIBOR + 4.00%), Maturing July 24, 2024		548		548,993
WireCo WorldGroup, Inc.
Term Loan, 7.09%, (1 mo. USD LIBOR + 5.00%), Maturing September 30, 2023		270		272,350
Term Loan - Second Lien, 11.09%, (1 mo. USD LIBOR + 9.00%), Maturing September 30, 2024		650		656,500
			$	9,545,232


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Business Equipment and Services — 13.9%
Acosta Holdco, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing September 26, 2021			1,470	$	1,129,555
Adtalem Global Education, Inc.
Term Loan, 5.08%, (1 mo. USD LIBOR + 3.00%), Maturing April 1, 2025			175		175,583
AlixPartners, LLP
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing April 4, 2024			1,063		1,063,723
Altran Technologies S.A.
Term Loan, 2.75%, (3 mo. EURIBOR + 2.75%), Maturing March 20, 2025	EUR		679		788,761
ASGN Incorporated
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing April 2, 2025			215		215,258
BMC Software Finance, Inc.
Term Loan, Maturing June 26, 2025⁽⁵⁾			1,375		1,367,490
Term Loan, Maturing June 27, 2025⁽⁵⁾	EUR		125		145,245
Brand Energy & Infrastructure Services, Inc.
Term Loan, 6.61%, (3 mo. USD LIBOR + 4.25%), Maturing June 21, 2024			248		248,245
Brickman Group Ltd., LLC
Term Loan, 5.46%, (1 mo. USD LIBOR + 3.00%), Maturing December 18, 2020			375		376,068
Camelot UK Holdco Limited
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing October 3, 2023			938		937,447
Cast and Crew Payroll, LLC
Term Loan, 4.85%, (1 mo. USD LIBOR + 2.75%), Maturing September 27, 2024			198		196,150
Ceridian HCM Holding, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing April 5, 2025			700		700,292
Change Healthcare Holdings, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing March 1, 2024			3,111		3,104,208
Corporate Capital Trust, Inc.
Term Loan, 5.38%, (1 mo. USD LIBOR + 3.25%), Maturing May 20, 2019			455		455,950
CPM Holdings, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing April 11, 2022			121		122,425
Crossmark Holdings, Inc.
Term Loan, 5.83%, (3 mo. USD LIBOR + 3.50%), Maturing December 20, 2019			696		388,146


		7		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Business Equipment and Services (continued)
Cypress Intermediate Holdings III, Inc.
Term Loan, 5.10%, (1 mo. USD LIBOR + 3.00%), Maturing April 27, 2024			619	$	618,750
EAB Global, Inc.
Term Loan, 6.25%, (USD LIBOR + 3.75%), Maturing November 15, 2024⁽⁴⁾			623		617,203
Education Management, LLC
Term Loan, 0.00%, Maturing July 2, 2020⁽³⁾⁽⁶⁾			114		21,437
Term Loan, 0.00%, Maturing July 2, 2020⁽³⁾⁽⁶⁾			256		0
EIG Investors Corp.
Term Loan, 6.07%, (3 mo. USD LIBOR + 3.75%), Maturing February 9, 2023			1,558		1,558,897
Element Materials Technology Group US Holdings, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing June 28, 2024			174		174,669
Extreme Reach, Inc.
Term Loan, 8.35%, (1 mo. USD LIBOR + 6.25%), Maturing February 7, 2020			977		975,791
First Data Corporation
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing July 8, 2022			1,165		1,159,963
Garda World Security Corporation
Term Loan, 5.80%, (3 mo. USD LIBOR + 3.50%), Maturing May 24, 2024			933		938,518
Term Loan, 6.01%, (3 mo. USD LIBOR + 4.25%), Maturing May 24, 2024	CAD		421		322,448
Global Payments, Inc.
Term Loan, 3.84%, (1 mo. USD LIBOR + 1.75%), Maturing April 21, 2023			166		165,847
IG Investment Holdings, LLC
Term Loan, 5.69%, (USD LIBOR + 3.50%), Maturing May 18, 2025⁽⁴⁾			1,131		1,131,753
Information Resources, Inc.
Term Loan, 6.57%, (3 mo. USD LIBOR + 4.25%), Maturing January 18, 2024			395		395,617
ION Trading Technologies S.a.r.l.
Term Loan, 3.75%, (2 mo. EURIBOR + 2.75%, Floor 1.00%), Maturing November 21, 2024	EUR		995		1,151,309
Iron Mountain, Inc.
Term Loan, 3.84%, (1 mo. USD LIBOR + 1.75%), Maturing January 2, 2026			424		415,459
J.D. Power and Associates
Term Loan, 6.34%, (1 mo. USD LIBOR + 4.25%), Maturing September 7, 2023			1,082		1,085,921


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Business Equipment and Services (continued)
KAR Auction Services, Inc.
Term Loan, 4.38%, (1 mo. USD LIBOR + 2.25%), Maturing March 11, 2021			879	$	882,897
Kronos Incorporated
Term Loan, 5.36%, (3 mo. USD LIBOR + 3.00%), Maturing November 1, 2023			2,814		2,814,179
LegalZoom.com, Inc.
Term Loan, 6.59%, (1 mo. USD LIBOR + 4.50%), Maturing November 21, 2024			348		352,149
Term Loan - Second Lien, 10.59%, (1 mo. USD LIBOR + 8.50%), Maturing November 21, 2025			250		252,500
Monitronics International, Inc.
Term Loan, 7.83%, (3 mo. USD LIBOR + 5.50%), Maturing September 30, 2022			1,090		1,043,835
PGX Holdings, Inc.
Term Loan, 7.35%, (1 mo. USD LIBOR + 5.25%), Maturing September 29, 2020			591		578,460
Ping Identity Corporation
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing January 22, 2025			175		175,000
Pre-Paid Legal Services, Inc.
Term Loan, 5.23%, (1 mo. USD LIBOR + 3.25%), Maturing May 1, 2025			225		226,617
Prime Security Services Borrower, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing May 2, 2022			1,306		1,301,696
Red Ventures, LLC
Term Loan, 6.09%, (1 mo. USD LIBOR + 4.00%), Maturing November 8, 2024			571		574,407
SMG Holdings, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing January 23, 2025			125		124,921
Solera, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing March 3, 2023			373		372,569
Spin Holdco, Inc.
Term Loan, 5.34%, (2 mo. USD LIBOR + 3.25%), Maturing November 14, 2022			1,538		1,533,764
Techem GmbH
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing October 2, 2024	EUR		625		729,590
Tempo Acquisition, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing May 1, 2024			918		916,228
Trans Union, LLC
Term Loan, Maturing June 8, 2025⁽⁵⁾			200		199,583


		8		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Business Equipment and Services (continued)
Travelport Finance (Luxembourg) S.a.r.l.
Term Loan, 4.83%, (3 mo. USD LIBOR + 2.50%), Maturing March 17, 2025			950	$	947,921
Vantiv, LLC
Term Loan, Maturing October 14, 2023⁽⁵⁾			175		174,863
Term Loan, 3.79%, (1 mo. USD LIBOR + 1.75%), Maturing August 9, 2024			849		847,638
Vestcom Parent Holdings, Inc.
Term Loan, 6.09%, (1 mo. USD LIBOR + 4.00%), Maturing December 19, 2023			246		245,634
WASH Multifamily Laundry Systems, LLC
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing May 14, 2022			124		124,126
West Corporation
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing October 10, 2024			150		149,719
Term Loan, 6.09%, (1 mo. USD LIBOR + 4.00%), Maturing October 10, 2024			522		521,302
ZPG PLC
Term Loan, Maturing June 30, 2025⁽⁵⁾	GBP		350		460,816
				$	37,698,542

Cable and Satellite Television — 6.1%
Charter Communications Operating, LLC
Term Loan, 4.10%, (1 mo. USD LIBOR + 2.00%), Maturing April 30, 2025			1,692	$	1,691,884
CSC Holdings, LLC
Term Loan, 4.32%, (1 mo. USD LIBOR + 2.25%), Maturing July 17, 2025			1,728		1,717,782
Term Loan, 4.57%, (1 mo. USD LIBOR + 2.50%), Maturing January 25, 2026			600		599,025
Numericable Group S.A.
Term Loan, 3.00%, (2 mo. EURIBOR + 3.00%), Maturing July 31, 2025	EUR		223		254,952
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing July 31, 2025			891		876,893
Radiate Holdco, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing February 1, 2024			918		903,649
Telenet Financing USD, LLC
Term Loan, 4.32%, (1 mo. USD LIBOR + 2.25%), Maturing August 17, 2026			1,075		1,068,785
Unitymedia Finance, LLC
Term Loan, 4.32%, (1 mo. USD LIBOR + 2.25%), Maturing January 15, 2026			450		448,313
Unitymedia Hessen GmbH & Co. KG
Term Loan, 2.75%, (6 mo. EURIBOR + 2.75%), Maturing January 15, 2027	EUR		500		580,616


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Cable and Satellite Television (continued)
UPC Financing Partnership
Term Loan, 4.57%, (1 mo. USD LIBOR + 2.50%), Maturing January 15, 2026			1,200	$	1,188,450
Term Loan, 2.75%, (6 mo. EURIBOR + 2.75%), Maturing October 15, 2026	EUR		1,000		1,159,528
Virgin Media Bristol, LLC
Term Loan, 4.57%, (1 mo. USD LIBOR + 2.50%), Maturing January 15, 2026			3,250		3,230,702
Ziggo Secured Finance B.V.
Term Loan, 3.00%, (6 mo. EURIBOR + 3.00%), Maturing April 15, 2025	EUR		1,075		1,236,240
Ziggo Secured Finance Partnership
Term Loan, 4.57%, (1 mo. USD LIBOR + 2.50%), Maturing April 15, 2025			1,700		1,684,595
				$	16,641,414

Chemicals and Plastics — 6.4%
Alpha 3 B.V.
Term Loan, 5.33%, (3 mo. USD LIBOR + 3.00%), Maturing January 31, 2024			322	$	323,332
Aruba Investments, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing February 2, 2022			441		441,453
Ashland, Inc.
Term Loan, 3.84%, (1 mo. USD LIBOR + 1.75%), Maturing May 17, 2024			272		272,182
Axalta Coating Systems US Holdings, Inc.
Term Loan, 4.08%, (3 mo. USD LIBOR + 1.75%), Maturing June 1, 2024			1,268		1,263,252
Chemours Company (The)
Term Loan, 2.50%, (3 mo. EURIBOR + 2.00%, Floor 0.50%), Maturing March 21, 2025	EUR		289		338,874
Term Loan, 3.85%, (1 mo. USD LIBOR + 1.75%), Maturing April 3, 2025			156		154,175
Emerald Performance Materials, LLC
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing August 1, 2021			239		241,311
Term Loan - Second Lien, 9.84%, (1 mo. USD LIBOR + 7.75%), Maturing August 1, 2022			275		275,516
Ferro Corporation
Term Loan, 4.58%, (3 mo. USD LIBOR + 2.25%), Maturing February 14, 2024			160		160,217
Term Loan, 4.58%, (3 mo. USD LIBOR + 2.25%), Maturing February 14, 2024			164		163,700
Term Loan, 4.58%, (3 mo. USD LIBOR + 2.25%), Maturing February 14, 2024			198		197,340


		9		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Chemicals and Plastics (continued)
Flint Group GmbH
Term Loan, 5.36%, (3 mo. USD LIBOR + 3.00%), Maturing September 7, 2021			72	$	67,443
Flint Group US, LLC
Term Loan, 5.36%, (3 mo. USD LIBOR + 3.00%), Maturing September 7, 2021			434		407,972
Gemini HDPE, LLC
Term Loan, 4.86%, (3 mo. USD LIBOR + 2.50%), Maturing August 7, 2024			788		787,718
H.B. Fuller Company
Term Loan, 4.08%, (1 mo. USD LIBOR + 2.00%), Maturing October 20, 2024			963		958,281
Ineos US Finance, LLC
Term Loan, 2.50%, (1 mo. EURIBOR + 2.00%, Floor 0.50%), Maturing March 31, 2024	EUR		1,443		1,668,873
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing March 31, 2024			498		496,434
Invictus US, LLC
Term Loan, 5.10%, (2 mo. USD LIBOR + 3.00%), Maturing March 28, 2025			224		224,578
Kraton Polymers, LLC
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing March 5, 2025			487		487,324
MacDermid, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing June 7, 2020			485		484,862
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing June 7, 2023			1,283		1,287,052
Minerals Technologies, Inc.
Term Loan, 4.40%, (USD LIBOR + 2.25%), Maturing February 14, 2024⁽⁴⁾			424		427,458
Orion Engineered Carbons GmbH
Term Loan, 4.33%, (3 mo. USD LIBOR + 2.00%), Maturing July 25, 2024			484		485,982
Term Loan, 2.25%, (3 mo. EURIBOR + 2.25%), Maturing July 31, 2024	EUR		367		428,330
PQ Corporation
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing February 8, 2025			1,452		1,450,556
Prince Minerals, Inc.
Term Loan, 5.90%, (USD LIBOR + 3.50%), Maturing March 20, 2025⁽⁴⁾			175		174,890
Sonneborn Refined Products B.V.
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing December 10, 2020			30		30,128


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Chemicals and Plastics (continued)
Sonneborn, LLC
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing December 10, 2020			169	$	170,725
Spectrum Holdings III Corp.
Term Loan, 1.00%, Maturing January 31, 2025⁽²⁾			16		15,730
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing January 31, 2025			159		158,653
Tronox Blocked Borrower, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing September 22, 2024			489		489,485
Tronox Finance, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing September 22, 2024			1,128		1,129,580
Unifrax Corporation
Term Loan, 5.83%, (3 mo. USD LIBOR + 3.50%), Maturing April 4, 2024			272		273,106
Univar, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing July 1, 2024			1,200		1,199,512
Venator Materials Corporation
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing August 8, 2024			174		175,859
				$	17,311,883

Conglomerates — 0.0%⁽⁷⁾
Penn Engineering & Manufacturing Corp.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing June 27, 2024			124	$	123,750
				$	123,750

Containers and Glass Products — 4.3%
Berlin Packaging, LLC
Term Loan, 5.04%, (USD LIBOR + 3.00%), Maturing November 7, 2025⁽⁴⁾			125	$	124,498
Berry Global, Inc.
Term Loan, 4.08%, (1 mo. USD LIBOR + 2.00%), Maturing October 1, 2022			409		409,173
BWAY Holding Company
Term Loan, 5.59%, (3 mo. USD LIBOR + 3.25%), Maturing April 3, 2024			1,220		1,222,920
Consolidated Container Company, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing May 22, 2024			174		174,314
Crown Americas, LLC
Term Loan, 2.38%, (3 mo. EURIBOR + 2.38%), Maturing January 29, 2025	EUR		275		320,744


		10		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Containers and Glass Products (continued)
Flex Acquisition Company, Inc.
Term Loan, 5.31%, (3 mo. USD LIBOR + 3.00%), Maturing December 29, 2023			1,609	$	1,606,021
Term Loan, 5.75%, (3 mo. USD LIBOR + 3.25%), Maturing June 22, 2025			700		701,750
Horizon Holdings III SAS
Term Loan, 2.75%, (6 mo. EURIBOR + 2.75%), Maturing October 29, 2022	EUR		742		850,052
Libbey Glass, Inc.
Term Loan, 5.05%, (1 mo. USD LIBOR + 3.00%), Maturing April 9, 2021			463		457,144
Pelican Products, Inc.
Term Loan, 5.48%, (1 mo. USD LIBOR + 3.50%), Maturing May 1, 2025			300		300,469
Reynolds Group Holdings, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing February 5, 2023			2,503		2,502,946
Ring Container Technologies Group, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing October 31, 2024			348		346,944
SIG Combibloc PurchaseCo S.a.r.l.
Term Loan, 3.25%, (1 mo. EURIBOR + 3.25%), Maturing March 13, 2022	EUR		943		1,097,332
SIG Combibloc US Acquisition, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing March 13, 2022			536		537,172
Trident TPI Holdings, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing October 17, 2024			374		371,818
Verallia Packaging S.A.S.
Term Loan, Maturing August 29, 2025⁽⁵⁾	EUR		675		777,328
				$	11,800,625

Cosmetics / Toiletries — 0.3%
KIK Custom Products, Inc.
Term Loan, 6.09%, (1 mo. USD LIBOR + 4.00%), Maturing May 15, 2023			876	$	873,675
				$	873,675

Drugs — 5.8%
Albany Molecular Research, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing August 30, 2024			323	$	321,907
Alkermes, Inc.
Term Loan, 4.26%, (1 mo. USD LIBOR + 2.25%), Maturing March 23, 2023			190		189,855


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Drugs (continued)
Amneal Pharmaceuticals, LLC
Term Loan, 5.63%, (1 mo. USD LIBOR + 3.50%), Maturing May 4, 2025		1,675	$	1,674,613
Arbor Pharmaceuticals, Inc.
Term Loan, 7.49%, (3 mo. USD LIBOR + 5.00%), Maturing July 5, 2023		1,415		1,422,930
Endo Luxembourg Finance Company I S.a.r.l.
Term Loan, 6.38%, (1 mo. USD LIBOR + 4.25%), Maturing April 29, 2024		2,252		2,241,691
Horizon Pharma, Inc.
Term Loan, 5.38%, (1 mo. USD LIBOR + 3.25%), Maturing March 29, 2024		1,584		1,583,423
Jaguar Holding Company II
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing August 18, 2022		3,261		3,244,962
Mallinckrodt International Finance S.A.
Term Loan, 5.09%, (3 mo. USD LIBOR + 2.75%), Maturing September 24, 2024		1,218		1,195,407
Term Loan, 5.52%, (6 mo. USD LIBOR + 3.00%), Maturing February 24, 2025		399		393,431
PharMerica Corporation
Term Loan, 5.55%, (1 mo. USD LIBOR + 3.50%), Maturing December 6, 2024		374		373,985
Term Loan - Second Lien, 9.80%, (1 mo. USD LIBOR + 7.75%), Maturing December 7, 2025		200		199,750
Valeant Pharmaceuticals International, Inc.
Term Loan, 4.98%, (1 mo. USD LIBOR + 3.00%), Maturing June 1, 2025		3,048		3,041,486
			$	15,883,440

Ecological Services and Equipment — 1.2%
Advanced Disposal Services, Inc.
Term Loan, 4.23%, (1 week USD LIBOR + 2.25%), Maturing November 10, 2023		977	$	976,021
Charah, LLC
Term Loan, 8.55%, (USD LIBOR + 6.25%), Maturing October 25, 2024⁽⁴⁾		246		249,917
EnergySolutions, LLC
Term Loan, 6.08%, (3 mo. USD LIBOR + 3.75%), Maturing May 9, 2025		575		577,696
GFL Environmental, Inc.
Term Loan, 0.00%, Maturing May 30, 2025⁽²⁾		127		126,436
Term Loan, 5.08%, (3 mo. USD LIBOR + 2.75%), Maturing May 30, 2025		1,023		1,017,814
Wrangler Buyer Corp.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing September 27, 2024		324		323,360
			$	3,271,244


		11		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Electronics / Electrical — 17.2%
AI Ladder (Luxembourg) Subco S.a r.l
Term Loan, Maturing May 1, 2025⁽⁵⁾		175	$	175,000
Almonde, Inc.
Term Loan, 5.81%, (3 mo. USD LIBOR + 3.50%), Maturing June 13, 2024		1,265		1,245,032
Answers Finance, LLC
Term Loan - Second Lien, 12.90%, (3 mo. USD Prime + 7.90%), Maturing September 15, 2021		241		236,086
Applied Systems, Inc.
Term Loan, 5.33%, (3 mo. USD LIBOR + 3.00%), Maturing September 19, 2024		1,067		1,069,688
Aptean, Inc.
Term Loan, 6.59%, (3 mo. USD LIBOR + 4.25%), Maturing December 20, 2022		1,185		1,186,296
Avast Software B.V.
Term Loan, 4.83%, (3 mo. USD LIBOR + 2.50%), Maturing September 30, 2023		678		678,963
Barracuda Networks, Inc.
Term Loan, 5.31%, (1 mo. USD LIBOR + 3.25%), Maturing February 12, 2025		575		573,562
Blackhawk Network Holdings, Inc.
Term Loan, 5.07%, (1 mo. USD LIBOR + 3.00%), Maturing June 15, 2025		375		374,590
Campaign Monitor Finance Pty. Limited
Term Loan, 7.58%, (3 mo. USD LIBOR + 5.25%), Maturing March 18, 2021		328		328,818
CommScope, Inc.
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing December 29, 2022		319		320,645
CPI International, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing July 26, 2024		323		322,966
Cypress Semiconductor Corporation
Term Loan, 4.35%, (1 mo. USD LIBOR + 2.25%), Maturing July 5, 2021		484		486,328
DigiCert, Inc.
Term Loan, 6.84%, (1 mo. USD LIBOR + 4.75%), Maturing October 31, 2024		949		949,081
Electro Rent Corporation
Term Loan, 7.33%, (3 mo. USD LIBOR + 5.00%), Maturing January 31, 2024		591		595,432
Energizer Holdings, Inc.
Term Loan, Maturing June 30, 2025⁽⁵⁾		250		250,729
Entegris, Inc.
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing April 30, 2021		59		59,453


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Electronics / Electrical (continued)
Epicor Software Corporation
Term Loan, 5.35%, (1 mo. USD LIBOR + 3.25%), Maturing June 1, 2022			1,397	$	1,396,050
Exact Merger Sub, LLC
Term Loan, 6.58%, (3 mo. USD LIBOR + 4.25%), Maturing September 27, 2024			298		299,239
EXC Holdings III Corp.
Term Loan, 5.83%, (3 mo. USD LIBOR + 3.50%), Maturing December 2, 2024			224		226,394
Eze Castle Software, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing April 6, 2020			1,327		1,332,688
Flexera Software, LLC
Term Loan, 5.35%, (1 mo. USD LIBOR + 3.25%), Maturing February 26, 2025			125		124,869
Go Daddy Operating Company, LLC
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing February 15, 2024			2,546		2,537,466
GTCR Valor Companies, Inc.
Term Loan, 5.58%, (3 mo. USD LIBOR + 3.25%), Maturing June 16, 2023			811		811,450
Hyland Software, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing July 1, 2022			1,224		1,230,572
Infoblox, Inc.
Term Loan, 6.59%, (1 mo. USD LIBOR + 4.50%), Maturing November 7, 2023			896		901,349
Infor (US), Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing February 1, 2022			3,327		3,315,823
Informatica, LLC
Term Loan, 3.50%, (3 mo. EURIBOR + 3.50%), Maturing August 5, 2022	EUR		149		174,453
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing August 5, 2022			1,802		1,807,882
Lattice Semiconductor Corporation
Term Loan, 6.27%, (1 mo. USD LIBOR + 4.25%), Maturing March 10, 2021			232		232,484
MA FinanceCo., LLC
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing November 19, 2021			1,416		1,408,697
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing June 21, 2024			232		230,205
MACOM Technology Solutions Holdings, Inc.
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing May 17, 2024			586		578,976


		12		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Electronics / Electrical (continued)
Microchip Technology Incorporated
Term Loan, 4.10%, (1 mo. USD LIBOR + 2.00%), Maturing May 29, 2025		1,225	$	1,228,062
MTS Systems Corporation
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing July 5, 2023		533		538,045
Plantronics, Inc.
Term Loan, Maturing May 30, 2025⁽⁵⁾		650		649,390
Prometric Holdings, Inc.
Term Loan, 5.10%, (1 mo. USD LIBOR + 3.00%), Maturing January 29, 2025		150		149,531
Renaissance Holding Corp.
Term Loan, 5.58%, (3 mo. USD LIBOR + 3.25%), Maturing May 30, 2025		575		573,210
Term Loan - Second Lien, 9.33%, (3 mo. USD LIBOR + 7.00%), Maturing May 29, 2026		75		74,813
Rocket Software, Inc.
Term Loan, 6.08%, (3 mo. USD LIBOR + 3.75%), Maturing October 14, 2023		640		644,250
Seattle Spinco, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing June 21, 2024		1,564		1,562,617
SGS Cayman L.P.
Term Loan, 7.71%, (3 mo. USD LIBOR + 5.38%), Maturing April 23, 2021		190		182,947
SkillSoft Corporation
Term Loan, 6.84%, (1 mo. USD LIBOR + 4.75%), Maturing April 28, 2021		2,258		2,140,441
SolarWinds Holdings, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing February 5, 2024		920		922,548
Southwire Company
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing May 15, 2025		275		275,430
SS&C Technologies Holdings Europe S.a.r.l.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing April 16, 2025		665		666,539
SS&C Technologies, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing April 16, 2025		1,758		1,761,872
SurveyMonkey, Inc.
Term Loan, 6.60%, (1 mo. USD LIBOR + 4.50%), Maturing April 13, 2024		644		642,696
Sutherland Global Services, Inc.
Term Loan, 7.71%, (3 mo. USD LIBOR + 5.38%), Maturing April 23, 2021		814		785,930


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Electronics / Electrical (continued)
Switch, Ltd.
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing June 27, 2024			124	$	124,008
Tibco Software, Inc.
Term Loan, 5.60%, (1 mo. USD LIBOR + 3.50%), Maturing December 4, 2020			247		248,648
TTM Technologies, Inc.
Term Loan, 4.48%, (1 mo. USD LIBOR + 2.50%), Maturing September 28, 2024			150		150,563
Uber Technologies
Term Loan, 5.55%, (1 mo. USD LIBOR + 3.50%), Maturing July 13, 2023			2,041		2,058,389
Term Loan, 6.00%, (1 mo. USD LIBOR + 4.00%), Maturing April 4, 2025			725		729,350
Veritas Bermuda Ltd.
Term Loan, 6.65%, (USD LIBOR + 4.50%), Maturing January 27, 2023⁽⁴⁾			1,047		962,455
Vero Parent, Inc.
Term Loan, 7.09%, (1 mo. USD LIBOR + 5.00%), Maturing August 16, 2024			1,216		1,219,156
VF Holding Corp.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing June 30, 2023			1,574		1,578,405
Wall Street Systems Delaware, Inc.
Term Loan, 4.00%, (3 mo. EURIBOR + 3.00%, Floor 1.00%), Maturing November 21, 2024	EUR		274		320,338
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing November 21, 2024			348		348,032
Western Digital Corporation
Term Loan, 3.84%, (1 mo. USD LIBOR + 1.75%), Maturing April 29, 2023			800		800,946
				$	46,799,877

Equipment Leasing — 0.8%
Avolon TLB Borrower 1 (US), LLC
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing January 15, 2025			1,985	$	1,964,257
IBC Capital Limited
Term Loan, 6.08%, (3 mo. USD LIBOR + 3.75%), Maturing September 11, 2023			274		274,998
				$	2,239,255

Financial Intermediaries — 5.8%
Armor Holding II, LLC
Term Loan - Second Lien, 8.50%, (3 mo. USD Prime + 3.50%), Maturing June 26, 2020			963	$	967,476
Term Loan - Second Lien, 11.10%, (1 mo. USD LIBOR + 9.00%), Maturing December 26, 2020			725		728,625


		13		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Financial Intermediaries (continued)
Citco Funding, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing March 31, 2022		1,920	$	1,922,221
Clipper Acquisitions Corp.
Term Loan, 3.75%, (1 mo. USD LIBOR + 1.75%), Maturing December 27, 2024		572		572,597
Ditech Holding Corporation
Term Loan, 8.09%, (1 mo. USD LIBOR + 6.00%), Maturing June 30, 2022		1,535		1,476,770
Donnelley Financial Solutions, Inc.
Term Loan, 4.98%, (1 week USD LIBOR + 3.00%), Maturing October 2, 2023		134		133,905
EIG Management Company, LLC
Term Loan, 6.08%, (3 mo. USD LIBOR + 3.75%), Maturing February 22, 2025		125		126,354
FinCo I, LLC
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing December 27, 2022		492		492,898
Focus Financial Partners, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing July 3, 2024		671		671,524
Freedom Mortgage Corporation
Term Loan, 6.84%, (1 mo. USD LIBOR + 4.75%), Maturing February 23, 2022		922		928,480
Greenhill & Co., Inc.
Term Loan, 5.83%, (USD LIBOR + 3.75%), Maturing October 12, 2022⁽⁴⁾		488		491,766
GreenSky Holdings, LLC
Term Loan, 5.38%, (1 mo. USD LIBOR + 3.25%), Maturing March 29, 2025		648		654,048
Guggenheim Partners, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing July 21, 2023		511		512,533
Harbourvest Partners, LLC
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing February 20, 2025		556		554,195
LPL Holdings, Inc.
Term Loan, 4.49%, (USD LIBOR + 2.25%), Maturing September 23, 2024⁽⁴⁾		644		644,517
NXT Capital, Inc.
Term Loan, 5.60%, (1 mo. USD LIBOR + 3.50%), Maturing November 22, 2022		1,256		1,261,080
Ocwen Financial Corporation
Term Loan, 7.09%, (1 mo. USD LIBOR + 5.00%), Maturing December 5, 2020		143		144,015


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Financial Intermediaries (continued)
Quality Care Properties, Inc.
Term Loan, 7.34%, (1 mo. USD LIBOR + 5.25%), Maturing October 31, 2022			1,256	$	1,268,434
Sesac Holdco II, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing February 23, 2024			272		269,865
StepStone Group L.P.
Term Loan, 6.09%, (1 mo. USD LIBOR + 4.00%), Maturing March 14, 2025			299		301,120
Victory Capital Holdings, Inc.
Term Loan, 5.08%, (3 mo. USD LIBOR + 2.75%), Maturing February 12, 2025			146		145,651
Virtus Investment Partners, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing June 1, 2024			248		247,195
Term Loan, 2.50%, Maturing June 3, 2024⁽²⁾			75		74,719
Walker & Dunlop, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing December 11, 2020			1,048		1,055,671
				$	15,645,659

Food Products — 4.2%
Alphabet Holding Company, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing September 26, 2024			1,141	$	1,073,368
American Seafoods Group, LLC
Term Loan, 4.85%, (1 mo. USD LIBOR + 2.75%), Maturing August 21, 2023			170		170,851
Badger Buyer Corp.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing September 30, 2024			174		173,470
CHG PPC Parent, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing March 31, 2025			225		223,875
Del Monte Foods, Inc.
Term Loan, 5.58%, (3 mo. USD LIBOR + 3.25%), Maturing February 18, 2021			330		277,990
Term Loan - Second Lien, 9.75%, (6 mo. USD LIBOR + 7.25%), Maturing August 18, 2021			268		191,717
Dole Food Company, Inc.
Term Loan, 4.83%, (USD LIBOR + 2.75%), Maturing April 6, 2024⁽⁴⁾			804		801,799
Froneri International PLC
Term Loan, 2.63%, (3 mo. EURIBOR + 2.63%), Maturing January 22, 2025	EUR		1,200		1,389,682


		14		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Food Products (continued)
Hearthside Food Solutions, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing May 23, 2025			350	$	347,448
High Liner Foods Incorporated
Term Loan, 5.56%, (3 mo. USD LIBOR + 3.25%), Maturing April 24, 2021			380		369,124
HLF Financing S.a.r.l.
Term Loan, 7.59%, (1 mo. USD LIBOR + 5.50%), Maturing February 15, 2023			680		687,051
Jacobs Douwe Egberts International B.V.
Term Loan, 2.75%, (3 mo. EURIBOR + 2.00%, Floor 0.75%), Maturing July 2, 2022	EUR		117		137,128
Term Loan, 4.63%, (3 mo. USD LIBOR + 2.25%), Maturing July 2, 2022			783		783,626
JBS USA, LLC
Term Loan, 4.83%, (3 mo. USD LIBOR + 2.50%), Maturing October 30, 2022			3,311		3,296,976
Nomad Foods Europe Midco Limited
Term Loan, 4.31%, (1 mo. USD LIBOR + 2.25%), Maturing May 15, 2024			300		298,688
Term Loan, 4.32%, (1 mo. USD LIBOR + 2.25%), Maturing May 15, 2024			272		271,059
Post Holdings, Inc.
Term Loan, 4.10%, (1 mo. USD LIBOR + 2.00%), Maturing May 24, 2024			792		790,308
				$	11,284,160

Food Service — 2.3%
1011778 B.C. Unlimited Liability Company
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing February 16, 2024			2,546	$	2,534,968
Aramark Services, Inc.
Term Loan, 4.08%, (3 mo. USD LIBOR + 1.75%), Maturing March 11, 2025			424		424,202
Dhanani Group, Inc.
Term Loan, Maturing June 27, 2025⁽⁵⁾			275		273,969
IRB Holding Corp.
Term Loan, 5.27%, (1 mo. USD LIBOR + 3.25%), Maturing February 5, 2025			399		400,097
KFC Holding Co.
Term Loan, 3.84%, (1 mo. USD LIBOR + 1.75%), Maturing April 3, 2025			467		464,685
NPC International, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing April 19, 2024			421		422,328
Seminole Hard Rock Entertainment, Inc.
Term Loan, 5.06%, (3 mo. USD LIBOR + 2.75%), Maturing May 14, 2020			119		119,658


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Food Service (continued)
TKC Holdings, Inc.
Term Loan, 5.85%, (1 mo. USD LIBOR + 3.75%), Maturing February 1, 2023			494	$	494,676
US Foods, Inc.
Term Loan, Maturing June 27, 2023⁽⁵⁾			400		400,125
Welbilt, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing March 3, 2023			673		673,460
				$	6,208,168

Food / Drug Retailers — 1.7%
Albertsons, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing August 25, 2021			576	$	570,742
Term Loan, 5.34%, (3 mo. USD LIBOR + 3.00%), Maturing December 21, 2022			788		782,417
Term Loan, Maturing May 2, 2023⁽⁵⁾			550		547,441
Term Loan, 5.32%, (3 mo. USD LIBOR + 3.00%), Maturing June 22, 2023			1,731		1,715,384
Diplomat Pharmacy, Inc.
Term Loan, 6.60%, (1 mo. USD LIBOR + 4.50%), Maturing December 20, 2024			223		225,674
Holland & Barrett International
Term Loan, 5.89%, (3 mo. GBP LIBOR + 5.25%), Maturing August 4, 2024	GBP		200		255,372
Term Loan, 4.25%, (3 mo. EURIBOR + 4.25%), Maturing August 9, 2024	EUR		200		227,307
Supervalu, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing June 8, 2024			93		93,599
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing June 8, 2024			156		155,998
				$	4,573,934

Forest Products — 0.2%
Expera Specialty Solutions, LLC
Term Loan, 6.34%, (1 mo. USD LIBOR + 4.25%), Maturing November 3, 2023			490	$	494,531
				$	494,531

Health Care — 15.3%
Acadia Healthcare Company, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing February 11, 2022			118	$	118,157


		15		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Health Care (continued)
ADMI Corp.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing April 30, 2025		823	$	822,423
Akorn, Inc.
Term Loan, 6.38%, (1 mo. USD LIBOR + 4.25%), Maturing April 16, 2021		938		922,035
Alliance Healthcare Services, Inc.
Term Loan, 6.59%, (1 mo. USD LIBOR + 4.50%), Maturing October 24, 2023		495		498,713
Term Loan - Second Lien, 12.09%, (1 mo. USD LIBOR + 10.00%), Maturing April 24, 2024		225		226,125
Argon Medical Devices, Inc.
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing January 23, 2025		424		425,704
Auris Luxembourg III S.a.r.l.
Term Loan, 5.33%, (3 mo. USD LIBOR + 3.00%), Maturing January 17, 2022		363		364,882
Avantor, Inc.
Term Loan, 6.09%, (1 mo. USD LIBOR + 4.00%), Maturing November 21, 2024		597		601,691
Beaver-Visitec International, Inc.
Term Loan, 7.09%, (1 mo. USD LIBOR + 5.00%), Maturing August 21, 2023		368		368,898
BioClinica, Inc.
Term Loan, 6.63%, (3 mo. USD LIBOR + 4.25%), Maturing October 20, 2023		715		682,932
BW NHHC Holdco, Inc.
Term Loan, 7.07%, (1 mo. USD LIBOR + 5.00%), Maturing May 15, 2025		475		470,250
Carestream Dental Equipment, Inc.
Term Loan, 5.58%, (3 mo. USD LIBOR + 3.25%), Maturing September 1, 2024		670		668,263
Certara L.P.
Term Loan, 5.83%, (3 mo. USD LIBOR + 3.50%), Maturing August 15, 2024		496		498,731
CHG Healthcare Services, Inc.
Term Loan, 5.36%, (3 mo. USD LIBOR + 3.00%), Maturing June 7, 2023		1,529		1,532,995
Community Health Systems, Inc.
Term Loan, 5.31%, (3 mo. USD LIBOR + 3.00%), Maturing December 31, 2019		864		862,366
Term Loan, 5.56%, (3 mo. USD LIBOR + 3.25%), Maturing January 27, 2021		1,245		1,216,677
Concentra, Inc.
Term Loan, 4.74%, (1 mo. USD LIBOR + 2.75%), Maturing June 1, 2022		388		389,013


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Health Care (continued)
Convatec, Inc.
Term Loan, 4.58%, (3 mo. USD LIBOR + 2.25%), Maturing October 31, 2023			271	$	273,414
CPI Holdco, LLC
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing March 21, 2024			321		323,346
CryoLife, Inc.
Term Loan, 6.33%, (3 mo. USD LIBOR + 4.00%), Maturing November 14, 2024			224		225,647
CTC AcquiCo GmbH
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing March 7, 2025	EUR		400		462,449
DaVita, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing June 24, 2021			766		768,824
DJO Finance, LLC
Term Loan, 5.45%, (USD LIBOR + 3.25%), Maturing June 8, 2020⁽⁴⁾			1,021		1,019,210
Envision Healthcare Corporation
Term Loan, 5.10%, (1 mo. USD LIBOR + 3.00%), Maturing December 1, 2023			1,954		1,955,522
Equian, LLC
Term Loan, 5.33%, (1 mo. USD LIBOR + 3.25%), Maturing May 20, 2024			297		297,002
Genoa, a QoL Healthcare Company, LLC
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing October 28, 2023			983		984,827
Gentiva Health Services, Inc.
Term Loan, Maturing June 2, 2025⁽⁵⁾			385		385,577
Term Loan, Maturing June 2, 2025⁽⁵⁾			615		616,923
GHX Ultimate Parent Corporation
Term Loan, 5.33%, (3 mo. USD LIBOR + 3.00%), Maturing June 28, 2024			447		447,308
Greatbatch Ltd.
Term Loan, 5.30%, (1 mo. USD LIBOR + 3.25%), Maturing October 27, 2022			994		997,878
Grifols Worldwide Operations USA, Inc.
Term Loan, 4.24%, (1 week USD LIBOR + 2.25%), Maturing January 31, 2025			1,629		1,631,242
Hanger, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing February 26, 2025			499		498,127
Indivior Finance S.a.r.l.
Term Loan, 6.86%, (3 mo. USD LIBOR + 4.50%), Maturing December 18, 2022			1,443		1,440,947
Inovalon Holdings, Inc.
Term Loan, 5.56%, (1 mo. USD LIBOR + 3.50%), Maturing April 2, 2025			575		560,984


		16		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Health Care (continued)
IQVIA, Inc.
Term Loan, 4.33%, (3 mo. USD LIBOR + 2.00%), Maturing March 7, 2024		313	$	313,489
Term Loan, 4.33%, (3 mo. USD LIBOR + 2.00%), Maturing January 17, 2025		471		470,613
Kindred Healthcare, Inc.
Term Loan, 5.88%, (3 mo. USD LIBOR + 3.50%), Maturing April 9, 2021		696		696,440
Kinetic Concepts, Inc.
Term Loan, 5.58%, (3 mo. USD LIBOR + 3.25%), Maturing February 2, 2024		1,287		1,291,022
KUEHG Corp.
Term Loan, 6.08%, (3 mo. USD LIBOR + 3.75%), Maturing August 13, 2022		1,447		1,449,867
Term Loan - Second Lien, 10.58%, (3 mo. USD LIBOR + 8.25%), Maturing August 18, 2025		200		204,000
Medical Depot Holdings, Inc.
Term Loan, 7.83%, (3 mo. USD LIBOR + 5.50%), Maturing January 3, 2023		188		172,346
Medical Solutions, LLC
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing June 9, 2024		373		373,173
MedPlast Holdings, Inc.
Term Loan, Maturing June 1, 2025⁽⁵⁾		225		224,578
MPH Acquisition Holdings, LLC
Term Loan, 5.08%, (3 mo. USD LIBOR + 2.75%), Maturing June 7, 2023		1,692		1,685,897
National Mentor Holdings, Inc.
Term Loan, 5.33%, (3 mo. USD LIBOR + 3.00%), Maturing January 31, 2021		508		509,574
Navicure, Inc.
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing November 1, 2024		299		298,500
New Millennium Holdco, Inc.
Term Loan, 8.59%, (1 mo. USD LIBOR + 6.50%), Maturing December 21, 2020		294		163,637
One Call Corporation
Term Loan, 7.32%, (1 mo. USD LIBOR + 5.25%), Maturing November 25, 2022		1,226		1,179,983
Ortho-Clinical Diagnostics S.A.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing June 30, 2025		1,636		1,631,026
Parexel International Corporation
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing September 27, 2024		1,265		1,260,164
Press Ganey Holdings, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing October 21, 2023		369		368,836


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Health Care (continued)
Prospect Medical Holdings, Inc.
Term Loan, 7.50%, (1 mo. USD LIBOR + 5.50%), Maturing February 22, 2024		574	$	574,996
R1 RCM, Inc.
Term Loan, 7.62%, (3 mo. USD LIBOR + 5.25%), Maturing April 27, 2025		275		275,000
RadNet, Inc.
Term Loan, 6.10%, (3 mo. USD LIBOR + 3.75%), Maturing June 30, 2023		711		720,071
Select Medical Corporation
Term Loan, 4.80%, (1 mo. USD LIBOR + 2.75%), Maturing March 1, 2021		790		789,013
Sotera Health Holdings, LLC
Term Loan, 5.33%, (3 mo. USD LIBOR + 3.00%), Maturing May 15, 2022		415		417,036
Sound Inpatient Physicians
Term Loan, Maturing June 5, 2025⁽⁵⁾		225		225,563
Surgery Center Holdings, Inc.
Term Loan, 5.35%, (2 mo. USD LIBOR + 3.25%), Maturing September 2, 2024		471		471,290
Syneos Health, Inc.
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing August 1, 2024		206		205,445
Team Health Holdings, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing February 6, 2024		988		955,818
Tecomet, Inc.
Term Loan, 5.51%, (1 week USD LIBOR + 3.50%), Maturing May 1, 2024		371		372,874
U.S. Anesthesia Partners, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing June 23, 2024		545		544,192
Wink Holdco, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing December 2, 2024		224		223,385
			$	41,626,910

Home Furnishings — 0.9%
Bright Bidco B.V.
Term Loan, 5.76%, (USD LIBOR + 3.50%), Maturing June 30, 2024⁽⁴⁾		743	$	743,075
Serta Simmons Bedding, LLC
Term Loan, 5.75%, (USD LIBOR + 3.50%), Maturing November 8, 2023⁽⁴⁾		2,148		1,834,365
			$	2,577,440


		17		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Industrial Equipment — 5.9%
Apex Tool Group, LLC
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing February 1, 2022			1,160	$	1,163,317
CFSP Acquisition Corp.
Term Loan, 1.00%, Maturing March 6, 2025⁽²⁾			23		22,834
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing March 21, 2025			102		100,976
Clark Equipment Company
Term Loan, 4.33%, (3 mo. USD LIBOR + 2.00%), Maturing May 18, 2024			902		897,062
Coherent Holding GmbH
Term Loan, 2.75%, (3 mo. EURIBOR + 2.00%, Floor 0.75%), Maturing November 7, 2023	EUR		334		392,319
Delachaux S.A.
Term Loan, 5.83%, (3 mo. USD LIBOR + 3.50%), Maturing October 28, 2021			184		184,495
DexKo Global, Inc.
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing July 24, 2024	EUR		15		17,356
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing July 24, 2024	EUR		37		43,391
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing July 24, 2024⁽²⁾	EUR		135		156,933
Term Loan, 3.75%, (3 mo. EURIBOR + 3.75%), Maturing July 24, 2024⁽²⁾	EUR		337		392,333
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing July 24, 2024			398		399,992
DXP Enterprises, Inc.
Term Loan, 6.84%, (1 mo. USD LIBOR + 4.75%), Maturing August 29, 2023			248		249,521
Engineered Machinery Holdings, Inc.
Term Loan, 5.58%, (3 mo. USD LIBOR + 3.25%), Maturing July 19, 2024			149		149,250
EWT Holdings III Corp.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing December 20, 2024			940		941,525
Filtration Group Corporation
Term Loan, 3.50%, (3 mo. EURIBOR + 3.50%), Maturing March 29, 2025	EUR		175		203,854
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing March 29, 2025			773		774,592
Gardner Denver, Inc.
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing July 30, 2024	EUR		191		222,000
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing July 30, 2024			572		573,266


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Industrial Equipment (continued)
Gates Global, LLC
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing April 1, 2024	EUR		420	$	489,149
Term Loan, 5.08%, (3 mo. USD LIBOR + 2.75%), Maturing April 1, 2024			2,134		2,135,856
Hayward Industries, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing August 5, 2024			223		224,010
Milacron, LLC
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing September 28, 2023			1,289		1,286,236
Paladin Brands Holding, Inc.
Term Loan, 7.83%, (3 mo. USD LIBOR + 5.50%), Maturing August 15, 2022			581		584,385
Pro Mach Group, Inc.
Term Loan, 5.02%, (1 mo. USD LIBOR + 3.00%), Maturing March 7, 2025			125		123,394
Reece, Ltd.
Term Loan, Maturing May 30, 2025⁽⁵⁾			400		401,250
Rexnord, LLC
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing August 21, 2024			933		933,771
Robertshaw US Holding Corp.
Term Loan, 5.63%, (1 mo. USD LIBOR + 3.50%), Maturing February 28, 2025			474		473,812
Tank Holding Corp.
Term Loan, 5.75%, (USD LIBOR + 3.50%), Maturing March 17, 2022⁽⁴⁾			327		328,322
Thermon Industries, Inc.
Term Loan, 5.73%, (1 mo. USD LIBOR + 3.75%), Maturing October 24, 2024			157		158,437
Titan Acquisition Limited
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing March 28, 2025			1,421		1,403,670
Waterjet Holdings, Inc.
Term Loan, 5.15%, (USD LIBOR + 3.00%), Maturing April 3, 2025⁽⁴⁾			125		124,687
Wittur GmbH
Term Loan, 5.00%, (3 mo. EURIBOR + 4.00%, Floor 1.00%), Maturing March 31, 2022	EUR		450		527,612
				$	16,079,607

Insurance — 4.6%
Alliant Holdings I, Inc.
Term Loan, 5.05%, (1 mo. USD LIBOR + 3.00%), Maturing May 9, 2025			1,145	$	1,139,389


		18		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Insurance (continued)
AmWINS Group, Inc.
Term Loan, 4.82%, (1 mo. USD LIBOR + 2.75%), Maturing January 25, 2024			1,359	$	1,355,958
Asurion, LLC
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing August 4, 2022			2,362		2,360,405
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing November 3, 2023			999		998,838
Term Loan - Second Lien, 8.09%, (1 mo. USD LIBOR + 6.00%), Maturing August 4, 2025			1,200		1,212,937
Financiere CEP
Term Loan, 4.25%, (3 mo. EURIBOR + 4.25%), Maturing December 13, 2024	EUR		250		286,841
Hub International Limited
Term Loan, 5.36%, (2 mo. USD LIBOR + 3.00%), Maturing April 25, 2025			2,350		2,337,674
NFP Corp.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing January 8, 2024			941		936,006
Sedgwick Claims Management Services, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing March 1, 2021			524		521,607
USI, Inc.
Term Loan, 5.33%, (3 mo. USD LIBOR + 3.00%), Maturing May 16, 2024			1,340		1,333,678
				$	12,483,333

Leisure Goods / Activities / Movies — 5.5%
AMC Entertainment Holdings, Inc.
Term Loan, 4.32%, (1 mo. USD LIBOR + 2.25%), Maturing December 15, 2022			1,024	$	1,023,659
Term Loan, 4.32%, (1 mo. USD LIBOR + 2.25%), Maturing December 15, 2023			247		246,528
Ancestry.com Operations, Inc.
Term Loan, 5.35%, (1 mo. USD LIBOR + 3.25%), Maturing October 19, 2023			1,397		1,396,058
Bombardier Recreational Products, Inc.
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing May 23, 2025			2,093		2,080,056
CDS U.S. Intermediate Holdings, Inc.
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing July 8, 2022			541		537,122
ClubCorp Holdings, Inc.
Term Loan, 5.08%, (3 mo. USD LIBOR + 2.75%), Maturing September 18, 2024			857		851,504


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Leisure Goods / Activities / Movies (continued)
Crown Finance US, Inc.
Term Loan, 2.63%, (1 mo. EURIBOR + 2.63%), Maturing February 28, 2025	EUR		399	$	462,108
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing February 28, 2025			973		967,639
Delta 2 (LUX) S.a.r.l.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing February 1, 2024			747		738,471
Emerald Expositions Holding, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing May 22, 2024			525		524,375
Etraveli Holding AB
Term Loan, 4.75%, (3 mo. EURIBOR + 4.75%), Maturing August 2, 2024	EUR		375		438,473
Lindblad Expeditions, Inc.
Term Loan, 5.95%, (6 mo. USD LIBOR + 3.50%), Maturing March 21, 2025			100		101,458
Term Loan, 5.95%, (6 mo. USD LIBOR + 3.50%), Maturing March 21, 2025			779		786,301
Live Nation Entertainment, Inc.
Term Loan, 3.88%, (1 mo. USD LIBOR + 1.75%), Maturing October 31, 2023			1,226		1,224,011
Match Group, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing November 16, 2022			241		242,129
Sabre GLBL, Inc.
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing February 22, 2024			473		472,740
SeaWorld Parks & Entertainment, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing March 31, 2024			819		814,475
SRAM, LLC
Term Loan, 4.92%, (USD LIBOR + 2.75%), Maturing March 15, 2024⁽⁴⁾			825		823,211
Steinway Musical Instruments, Inc.
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing February 13, 2025			424		426,587
UFC Holdings, LLC
Term Loan, 5.35%, (1 mo. USD LIBOR + 3.25%), Maturing August 18, 2023			690		691,152
				$	14,848,057

Lodging and Casinos — 6.0%
Aristocrat Technologies, Inc.
Term Loan, 4.11%, (3 mo. USD LIBOR + 1.75%), Maturing October 19, 2024			572	$	569,374


		19		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Lodging and Casinos (continued)
Boyd Gaming Corporation
Term Loan, 4.49%, (1 week USD LIBOR + 2.50%), Maturing September 15, 2023			458	$	460,208
CityCenter Holdings, LLC
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing April 18, 2024			1,190		1,185,532
Cyan Blue Holdco 3 Limited
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing August 23, 2024			124		123,939
Eldorado Resorts, LLC
Term Loan, 4.38%, (USD LIBOR + 2.25%), Maturing April 17, 2024⁽⁴⁾			396		397,010
ESH Hospitality, Inc.
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing August 30, 2023			585		583,723
Four Seasons Hotels Limited
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing November 30, 2023			443		442,696
Golden Nugget, Inc.
Term Loan, 4.82%, (1 mo. USD LIBOR + 2.75%), Maturing October 4, 2023			2,085		2,089,649
GVC Holdings PLC
Term Loan, 2.75%, (3 mo. EURIBOR + 2.75%), Maturing March 29, 2024	EUR		600		698,303
Term Loan, 4.17%, (3 mo. GBP LIBOR + 3.50%), Maturing March 29, 2024	GBP		300		394,935
Term Loan, 4.60%, (1 mo. USD LIBOR + 2.50%), Maturing March 29, 2024			524		524,124
Hanjin International Corp.
Term Loan, 4.86%, (3 mo. USD LIBOR + 2.50%), Maturing October 18, 2020			250		250,312
Hilton Worldwide Finance, LLC
Term Loan, 3.84%, (1 mo. USD LIBOR + 1.75%), Maturing October 25, 2023			1,799		1,800,101
Las Vegas Sands, LLC
Term Loan, 3.84%, (1 mo. USD LIBOR + 1.75%), Maturing March 27, 2025			499		495,975
MGM Growth Properties Operating Partnership L.P.
Term Loan, 4.09%, (1 mo. USD LIBOR + 2.00%), Maturing April 25, 2023			904		904,376
Playa Resorts Holding B.V.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing April 29, 2024			1,141		1,128,447
Stars Group Holdings B.V. (The)
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing April 6, 2025			2,107		2,111,122
Term Loan, Maturing July 28, 2025⁽⁵⁾	EUR		450		522,882


Borrower/Tranche Description		Principal Amount* (000’s omitted)		Value

Lodging and Casinos (continued)
Tropicana Entertainment, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing November 27, 2020			51	$	51,526
VICI Properties 1, LLC
Term Loan, 4.08%, (1 mo. USD LIBOR + 2.00%), Maturing December 20, 2024			1,026		1,021,219
Wyndham Hotels & Resorts, Inc.
Term Loan, 3.73%, (1 mo. USD LIBOR + 1.75%), Maturing May 30, 2025			625		625,456
				$	16,380,909

Nonferrous Metals / Minerals — 1.2%
Dynacast International, LLC
Term Loan, 5.58%, (3 mo. USD LIBOR + 3.25%), Maturing January 28, 2022			586	$	588,372
Global Brass & Copper, Inc.
Term Loan, 4.63%, (1 mo. USD LIBOR + 2.50%), Maturing May 24, 2025			393		393,983
Murray Energy Corporation
Term Loan, 9.34%, (1 mo. USD LIBOR + 7.25%), Maturing April 16, 2020			931		882,295
New Day Aluminum, LLC
Term Loan, 10.00%, (4.00% Cash, 6.00% PIK), Maturing October 28, 2020⁽³⁾⁽⁸⁾			32		19,006
Noranda Aluminum Acquisition Corporation
Term Loan, 0.00%, Maturing February 28, 2019⁽³⁾⁽⁶⁾			449		34,653
Oxbow Carbon, LLC
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing January 4, 2023			293		295,791
Term Loan - Second Lien, 9.59%, (1 mo. USD LIBOR + 7.50%), Maturing January 4, 2024			350		355,250
Rain Carbon GmbH
Term Loan, 3.00%, (3 mo. EURIBOR + 3.00%), Maturing January 16, 2025	EUR		450		525,291
United Central Industrial Supply Company, LLC
Term Loan - Second Lien, 15.00%, (0.00% Cash, 15.00% PIK), Maturing April 9, 2019⁽³⁾⁽⁸⁾			346		219,414
				$	3,314,055

Oil and Gas — 2.6%
Ameriforge Group, Inc.
Term Loan, 11.30%, (3 mo. USD LIBOR + 9.00% (10.30% Cash, 1.00% PIK)), Maturing June 8, 2022			337	$	339,752
Apergy Corporation
Term Loan, 4.56%, (1 mo. USD LIBOR + 2.50%), Maturing May 9, 2025			175		174,781


		20		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Oil and Gas (continued)
BCP Raptor, LLC
Term Loan, 6.42%, (2 mo. USD LIBOR + 4.25%), Maturing June 24, 2024		347	$	340,328
CITGO Petroleum Corporation
Term Loan, 5.81%, (3 mo. USD LIBOR + 3.50%), Maturing July 29, 2021		458		460,524
Delek US Holdings, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing March 13, 2025		175		174,126
Fieldwood Energy, LLC
Term Loan, 7.34%, (1 mo. USD LIBOR + 5.25%), Maturing April 11, 2022		1,188		1,192,461
Term Loan - Second Lien, 9.34%, (1 mo. USD LIBOR + 7.25%), Maturing April 11, 2023		113		111,088
Green Plains Renewable Energy, Inc.
Term Loan, 7.60%, (1 mo. USD LIBOR + 5.50%), Maturing August 18, 2023		496		503,694
McDermott Technology Americas, Inc.
Term Loan, 7.09%, (1 mo. USD LIBOR + 5.00%), Maturing May 10, 2025		599		602,390
Medallion Midland Acquisition, LLC
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing October 30, 2024		299		295,142
MEG Energy Corp.
Term Loan, 5.60%, (1 mo. USD LIBOR + 3.50%), Maturing December 31, 2023		608		609,035
PSC Industrial Holdings Corp.
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing October 3, 2024		348		348,250
Term Loan - Second Lien, 10.59%, (1 mo. USD LIBOR + 8.50%), Maturing October 3, 2025		200		199,000
Sheridan Investment Partners II L.P.
Term Loan, 5.81%, (3 mo. USD LIBOR + 3.50%), Maturing December 16, 2020		17		15,018
Term Loan, 5.81%, (3 mo. USD LIBOR + 3.50%), Maturing December 16, 2020		45		40,267
Term Loan, 5.81%, (3 mo. USD LIBOR + 3.50%), Maturing December 16, 2020		321		289,470
Sheridan Production Partners I, LLC
Term Loan, 5.82%, (3 mo. USD LIBOR + 3.50%), Maturing October 1, 2019		57		50,711
Term Loan, 5.82%, (3 mo. USD LIBOR + 3.50%), Maturing October 1, 2019		94		83,022
Term Loan, 5.82%, (3 mo. USD LIBOR + 3.50%), Maturing October 1, 2019		707		626,542


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Oil and Gas (continued)
Ultra Resources, Inc.
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing April 12, 2024		700	$	647,150
			$	7,102,751

Publishing — 1.7%
Ascend Learning, LLC
Term Loan, 5.09%, (1 mo. USD LIBOR + 3.00%), Maturing July 12, 2024		546	$	546,080
Getty Images, Inc.
Term Loan, 5.59%, (1 mo. USD LIBOR + 3.50%), Maturing October 18, 2019		1,701		1,647,795
Harland Clarke Holdings Corp.
Term Loan, 7.08%, (3 mo. USD LIBOR + 4.75%), Maturing November 3, 2023		405		396,434
Lamar Media Corporation
Term Loan, 3.88%, (1 mo. USD LIBOR + 1.75%), Maturing March 14, 2025		249		249,375
LSC Communications, Inc.
Term Loan, 7.59%, (1 mo. USD LIBOR + 5.50%), Maturing September 30, 2022		498		499,579
Merrill Communications, LLC
Term Loan, 7.61%, (3 mo. USD LIBOR + 5.25%), Maturing June 1, 2022		262		264,466
Multi Color Corporation
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing October 31, 2024		149		149,437
ProQuest, LLC
Term Loan, 5.84%, (1 mo. USD LIBOR + 3.75%), Maturing October 24, 2021		798		804,029
Tweddle Group, Inc.
Term Loan, 8.36%, (3 mo. USD LIBOR + 6.00%), Maturing October 24, 2022⁽³⁾		366		176,619
			$	4,733,814

Radio and Television — 4.4%
ALM Media Holdings, Inc.
Term Loan, 6.83%, (3 mo. USD LIBOR + 4.50%), Maturing July 31, 2020		201	$	179,073
CBS Radio, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing November 17, 2024		755		751,549
Cumulus Media New Holdings, Inc.
Term Loan, 6.60%, (1 mo. USD LIBOR + 4.50%), Maturing May 15, 2022		1,468		1,462,074


		21		See Notes to Financial Statements.

Eaton Vance

Senior Income Trust

June 30, 2018

Portfolio of Investments — continued


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Radio and Television (continued)
Entravision Communications Corporation
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing November 29, 2024		521	$	515,526
Gray Television, Inc.
Term Loan, 4.25%, (1 mo. USD LIBOR + 2.25%), Maturing February 7, 2024		123		122,894
Hubbard Radio, LLC
Term Loan, 5.10%, (1 mo. USD LIBOR + 3.00%), Maturing March 28, 2025		311		312,011
iHeartCommunications, Inc.
Term Loan, 0.00%, Maturing January 30, 2019⁽⁶⁾		1,066		817,036
Term Loan, 0.00%, Maturing July 30, 2019⁽⁶⁾		182		139,212
Mission Broadcasting, Inc.
Term Loan, 4.48%, (1 mo. USD LIBOR + 2.50%), Maturing January 17, 2024		161		160,836
Nexstar Broadcasting, Inc.
Term Loan, 4.48%, (1 mo. USD LIBOR + 2.50%), Maturing January 17, 2024		1,238		1,238,442
Raycom TV Broadcasting, LLC
Term Loan, 4.34%, (1 mo. USD LIBOR + 2.25%), Maturing August 23, 2024		521		521,551
Sinclair Television Group, Inc.
Term Loan, 4.35%, (1 mo. USD LIBOR + 2.25%), Maturing January 3, 2024		261		260,702
Term Loan, Maturing December 12, 2024⁽⁵⁾		1,425		1,424,637
Univision Communications, Inc.
Term Loan, 4.84%, (1 mo. USD LIBOR + 2.75%), Maturing March 15, 2024		4,105		3,974,373
			$	11,879,916

Retailers (Except Food and Drug) — 5.2%
Ascena Retail Group, Inc.
Term Loan, 6.63%, (1 mo. USD LIBOR + 4.50%), Maturing August 21, 2022		847	$	758,687
Bass Pro Group, LLC
Term Loan, 7.09%, (1 mo. USD LIBOR + 5.00%), Maturing September 25, 2024		620		622,832
BJ’s Wholesale Club, Inc.
Term Loan, 5.53%, (1 mo. USD LIBOR + 3.50%), Maturing February 3, 2024		470		470,771
CDW, LLC
Term Loan, 3.85%, (1 mo. USD LIBOR + 1.75%), Maturing August 17, 2023		2,108		2,108,748
Coinamatic Canada, Inc.
Term Loan, 5.34%, (1 mo. USD LIBOR + 3.25%), Maturing May 14, 2022		22		21,738


Borrower/Tranche Description	Principal Amount* (000’s omitted)		Value

Retailers (Except Food and Drug) (continued)
David’s Bridal, Inc.
Term Loan, 6.10%, (1 mo. USD LIBOR + 4.00%), Maturing October 11, 2019		985	$	874,556
Evergreen Acqco 1 L.P.
Term Loan, 6.11%, (3 mo. USD LIBOR + 3.75%), Maturing July 9, 2019		1,063		1,039,548
Global Appliance, Inc.
Term Loan, 6.10%, (1 mo. USD LIBOR + 4.00%), Maturing September 29, 2024		471		476,152
Go Wireless, Inc.
Term Loan, 8.59%, (1 mo. USD LIBOR + 6.50%), Maturing December 22, 2024		341		339,686
Harbor Freight Tools USA, Inc.
Term Loan, 4.59%, (1 mo. USD LIBOR + 2.50%), Maturing August 18, 2023		199		198,360
J. Crew Group, Inc.
Term Loan, 5.22%, (USD LIBOR + 3.00%), Maturing March 5, 2021⁽³⁾⁽⁴⁾		1,413		1,057,992
LSF9 Atlantis Holdings, LLC
Term Loan, 8.00%, (1 mo. USD LIBOR + 6.00%), Maturing May 1, 2023